I swapped weights for this four-move bodyweight routine, and it put my arms and abs to the test

Woman doing a plank exercise

I often skip upper-body workouts and focus on my legs. However, it means that my arms are usually my weakness during strength sessions. And although I regularly do multi-muscle exercises to work my core, I could do more for my mid-body. 

I realized I needed to find a way to ease myself back into upper-body workouts, but without weights like kettlebells. So, I decided to try a routine from personal trainer Berenice Salazar — it's completely bodyweight and there are only four moves.